| 发明名称 |
DRILLING TOOL WITH FEED CONTROL. |
| 摘要 |
<p>The present invention relates to a drilling tool (1) for drilling downhole, comprising a drilling head (2) in connection with a first portion (18) of the drilling tool, a driving unit (9) for driving the drilling head and the first portion forward in a longitudinal movement while drilling, and a feed control (19) for controlling the longitudinal movement of the drilling head.</p> |
| 申请公布号 |
MX2009009223(A) |
申请公布日期 |
2009.09.11 |
| 申请号 |
MX20090009223 |
申请日期 |
2008.02.28 |
| 申请人 |
WELLTEC A/S |
发明人 |
HALLUNDBAEK, JORGEN;ANDERSEN, THOMAS, SUNE |
| 分类号 |
E21B4/18;E21B17/07;E21B34/08 |
主分类号 |
E21B4/18 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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